javascript - Window.chrome 对象在 Electron App 中未定义

Question

我想用 Electron(以前称为 Atom-Shell)测量首次绘制时间。 Chrome 中提供了一个近似值，称为 window.chrome.loadTimes()，它返回一个对象。

但是对于 Electron window.chrome 对象是未定义的。

我这样做

var app = require('app');
var BrowserWindow = require('browser-window');
var mainWindow = null;

app.on('ready', function() { 
    var preloadJS = __dirname + '/TestPreloadJS.js'
    mainWindow = new BrowserWindow({width: 800, height: 600, show: true, preload: preloadJS}); 
    mainWindow.loadUrl('http://crawlbin.com/');
    mainWindow.openDevTools();

    mainWindow.on('closed', function() {
        mainWindow = null;
    }); 

    mainWindow.webContents.on('dom-ready', function() {
        mainWindow.webContents.executeJavaScript("console.log(process.versions['electron'])");
        mainWindow.webContents.executeJavaScript("console.log('Chrome version: ' + getChromeVersion())");
        mainWindow.webContents.executeJavaScript("console.log('window.chrome:' + window.chrome)");
    });     
});

在控制台中显示这个

[4792:0115/150607:INFO:renderer_main.cc(200)] Renderer process started [456:0115/150608:INFO:renderer_main.cc(200)] Renderer process started [4776:0115/150608:INFO:CONSOLE(1)] "0.31.0", source: (1) [4776:0115/150608:INFO:CONSOLE(1)] "Chrome version: 44", source: (1) [4776:0115/150608:INFO:CONSOLE(1)] "window.chrome:undefined", source: (1)

Answer 1

请引用https://github.com/atom/electron/issues/2042#issuecomment-114667969暂时不支持!!